There’s been hysteria regarding players signing overseas after the 2015 Rugby World Cup. There is the perception that Australia is losing more players than ever to overseas, and the players are younger and better.

Actually tell a lie. RUPA negotiated a similar system to what the AFL employs. This obvious was after Sailor's ban though.
RA has a 3 strike policy. 3rd strike would be contract termination and 2 year ban.
Hunt has never tested positive so a completely different situation.